<template>
  <MoveAnimation>
    <div v-show="showFlag" class="food" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back">
            <span @click="show" class="iconfont icon-arrow_lift">&#xe624;</span>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span><span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartControl-wrapper">
            <cart-control v-show="food.count" :food="food"></cart-control>
          </div>
          <transition name="fade">
            <div @click.stop.prevent="addFirst" class="buy" v-show="!food.count || food.count===0">加入购物车</div>
          </transition>
        </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <rating-select @ratingtypeSelect="handleRatingtypeSelect" @contentToggle="handleContentToggle" :selectType="selectType" :onlyContent="onlyContent" :desc="desc" :ratings="food.ratings"></rating-select>
          <div class="rating-wrapper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType, rating.text)" v-for="rating in food.ratings" class="rating-item border-1px">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img class="avatar" width="12px" height="12px" :src="rating.avatar">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span class="iconfont" :class="{'icondianzan': rating.rateType===0, 'iconai46': rating.rateType===1}">{{rating.text}}</span>
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
          </div>
        </div>
      </div>
    </div>
  </MoveAnimation>
</template>

<script>
  import Vue from 'vue'
  import BScroll from 'better-scroll'
  import MoveAnimation from "../fade/MoveAnimation"
  import CartControl from "../cartcontrol/CartControl"
  import Split from "../split/Split"
  import RatingSelect from "../ratingselect/RatingSelect"
  import {formatDate} from "../../common/js/date"

  const POSITIVE = 0
  const NEGATIVE = 1
  const ALL = 2
   export default {
        name: "Food",
        components: {
          MoveAnimation,
          CartControl,
          Split,
          RatingSelect
        },
        props: {
          food: Object
        },
        data () {
          return {
            showFlag: false,
            selectType: ALL,
            onlyContent: true,
            desc: {
              all: '全部',
              positive: '推荐',
              negative: '吐槽'
            }
          }
        },
        mounted() {
          this.selectType = ALL
          this.onlyContent = true
        },
        methods: {
          show () {
            this.showFlag = !this.showFlag
            this.$nextTick(() => {
              if (!this.scroll) {
                this.scroll = new BScroll(this.$refs.food, {
                  click: true
                })
              } else {
                this.scroll.refresh()
              }
            })
          },
          addFirst (event) {
            if (!event._constructed) {
              return
            }
            this.$emit('cartAdd', event.target)
            Vue.set(this.food, 'count', 1)
          },
          needShow (type, text) {
            if (this.onlyContent && !text) {
              return false
            }
            if (this.selectType === ALL) {
              return true
            } else {
              return type === this.selectType
            }
          },
          handleRatingtypeSelect(type) {
            this.selectType = type
            this.$nextTick(() => {//触发该方法scroll关联dom才更新
              this.scroll.refresh()
            })
          },
          handleContentToggle(onlyContent) {
            this.onlyContent = onlyContent
            this.$nextTick(() => {//触发该方法scroll关联dom才更新
              this.scroll.refresh()
            })
          }
        },
        filters: {
          formatDate(time) {
            let date = new Date(time)
            return formatDate(date, 'yyyy-MM-dd hh:mm')
          }
        }
    }
</script>

<style lang="stylus" scoped>
  @import "~@/common/stylus/mixin.styl"
  .food
    position: fixed
    left: 0
    top: 0
    bottom: 48px
    z-index: 30
    width: 100%
    background: #fff
    .image-header
      position: relative
      width: 100%
      height: 0
      padding-top: 100%
      img
        position: absolute
        top: 0
        left: 0
        width: 100%
        height: 100%
      .back
        position: absolute
        top: 10px
        left: 0
        .icon-arrow_lift
          display: block
          padding: 10px
          font-size: 20px
          color: #fff
    .content
      position: relative
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 8px
        font-size: 14px
        font-weight: 700
        color: rgb(7, 17, 27)
      .detail
        margin-bottom: 18px
        line-height: 10px
        height: 10px
        font-size: 0
        .sell-count, .rating
          font-size: 10px
          color: rgb(147, 153, 159)
        .sell-count
          margin-right: 12px
      .price
        font-weight: 700
        line-height: 24px
        .now
          margin-right: 8px
          font-size: 14px
          color: rgb(240, 20, 20)
        .old
          text-decoration: line-through
          font-size: 10px
          color: rgb(147, 153, 159)
      .cartControl-wrapper
        position: absolute
        right: 12px
        bottom: 12px
      .buy
        position: absolute
        right: 18px
        bottom: 18px
        z-index: 10
        height: 24px
        line-height: 24px
        padding: 0 12px
        box-sizing: border-box
        border-radius: 12px
        font-size: 10px
        color: #fff
        background: rgb(0, 160, 220)
        opacity: 1
        &.fade-enter-active, &.fade-leave-active
          transition: all .3s
        &.fade-enter, &.fade-leave-to
          opacity: 0
          z-index: -1
    .info
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 6px
        font-size: 14px
        color: rgb(7, 17, 27)
      .text
        line-height: 24px
        padding: 0 8px
        font-size: 12px
        color: rgb(77, 85, 93)
    .rating
      padding-top: 18px
      .title
        line-height: 14px
        margin-left: 18px
        font-size: 14px
        color: rgb(7, 17, 27)
      .rating-wrapper
        padding: 0 18px
        .rating-item
          position: relative
          padding: 16px 0
          border-1px(rgba(7, 17, 27, 0.1))
          .user
            position: absolute
            right: 0
            top: 16px
            line-height: 12px
            font-size: 0
            .name
              display: inline-block
              margin-right: 6px
              vertical-align: top
              vertical-align: top
              font-size: 10px
              color: rgb(147, 153, 159)
            .avatar
              border-radius: 50%
          .time
            margin-bottom: 6px
            line-height: 12px
            font-size: 10px
            color: rgb(147, 153, 159)
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7, 17, 27)
            .icondianzan, .iconai46
              margin-right: 4px
              line-height: 16px
              font-size: 12px
            .icondianzan
              color: rgb(0, 160, 220)
            .iconai46
              color: rgb(147, 153, 159)
        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147, 153, 159)
</style>
